SQL Formatter
Beautify and format SQL queries instantly. Supports MySQL, PostgreSQL, SQLite, T-SQL, and MariaDB — no signup required.
✓ Free · No signup · Works in browser · 100% private
Why use this tool
Powerful SQL Formatter for Every Dialect
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Multi-dialect Support
Format for MySQL, PostgreSQL, SQLite, T-SQL, MariaDB, and Standard SQL — all in one tool.
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Auto-format on Type
Formatting happens automatically as you type — no need to click a button after every change.
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Flexible Indentation
Choose 2 spaces, 4 spaces, or tabs to match your project's code style conventions.
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100% Private
SQL queries never leave your device. Safe for sensitive schemas and proprietary database logic.
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One-click Copy
Copy the formatted SQL output directly to your clipboard with the Copy button.
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Completely Free
No account needed, no character limits, no ads interfering with your workflow.
How it works
Format SQL in 3 Quick Steps
1
Select your SQL dialect and indentation
Choose MySQL, PostgreSQL, SQLite, T-SQL, or MariaDB from the dialect dropdown, and pick your preferred indentation style.
2
Paste or type your SQL
Paste any SQL query into the input box. Formatting happens automatically as you type, or click "Format SQL" to trigger manually.
3
Copy the formatted result
Review the beautified SQL in the output box and click "Copy" to copy it to your clipboard ready for use.
FAQ
Frequently Asked Questions
Which SQL dialects does this formatter support?
This formatter supports Standard SQL, MySQL, PostgreSQL, SQLite, T-SQL (Microsoft SQL Server), and MariaDB. Each dialect applies the appropriate keyword casing and syntax formatting rules for that database engine.
Does the formatter validate my SQL syntax?
The formatter focuses on beautifying SQL structure — indentation, keyword placement, and line breaks. It does not fully validate SQL syntax or detect logical errors. For syntax validation, run the query in your database client (MySQL Workbench, pgAdmin, etc.).
Can I use tabs instead of spaces for indentation?
Yes. In the Indent selector, choose "Tab" to use tab characters instead of spaces. You can also choose 2 or 4 spaces depending on your coding style guide. The choice is saved for the current session.
Is my SQL sent to any server?
No. All formatting happens in your browser using the sql-formatter JavaScript library. Your SQL queries never leave your device, making this tool safe for sensitive database schemas, credentials in queries, or proprietary business logic.
Why should I format my SQL?
Well-formatted SQL is easier to read, debug, and maintain. Consistent indentation makes complex JOINs, subqueries, and CTEs much easier to understand at a glance, especially when collaborating with a team or revisiting old queries months later.
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